Corrective Lens Apparatus and Method

ABSTRACT

A unitary lens structure is provided which is employable with spectacles as well as goggles and safety eyewear. The lens is formed as a unitary structure with projections having surfaces which are machinable for prescription eyewear extending from a first side surface of a larger shield. Damage from cracking of the shield at the intersections with the projection perimeters is prevented by non linear connections between the two surfaces.

This application claims priority to U.S. Provisional Patent ApplicationSer. No. 62/210,024 filed on Aug. 26, 2015, which is incorporated in itsentirety herein by this reference thereto.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates generally to corrective lenses employed ineyewear such as eyeglasses, protective eyewear, and goggles. Moreparticularly, the disclosed system and method relates to a lens having afirst portion forming a shield or surrounding portion formed ofoptically correct material and having one or a plurality of projectionspermanently positioned thereon for formation of corrective lenses. Soconfigured the device forms a unitary structure where the perimeter ofthe first portion of the lens is adapted for engagement in an eyewearframe or goggle or other lens frames.

2. Prior Art

Individuals with eyesight problems have turned to corrective eyewear forhundreds of years. As a general rule, such eyesight problems are aresult of the physical characteristics of the eye of the personrequiring corrective lenses. Over the duration such corrective lenseshave been provided to users requiring them. The basic nature of grindinglenses to refocus the image captured by the eye of the user onto thereceptive rear surface of their eye in a manner rendering clearer visionhas progressed to provide corrections for issues other than near or farsightedness. However, the basic premise of positioning a lens in frontof the eye of the user to refocus incoming light is still present today.

In some instances the nature of construction of corrective lenses,especially in combination with safety or protective eyewear, has beenless than adequate. For example, users of corrective lenses who sufferfrom severe farsightedness require very thick lenses to correct theirvision, which are not well adapted for use in combination with a shieldtype eyewear such a goggles. Further, such thick lenses have perimeterswhich limit the engagement to eyeglass frames.

Further, those with nearsightedness or farsightedness or who suffer fromother vision acuity problems also have problems trying to wearprotective goggles such as military members who wear goggles, or otherswho wear sport goggles for activities such as skiing or motorcycling.The problem of corrective lenses is also an issue when combined withworkers who must wear safety goggles.

Conventionally, such users have been forced to try and fit theireyeglasses within the cavity of the goggle or safety goggle coveringtheir eyes. In such a combination, the user must view their surroundingsthrough both the goggle lens, and their own lenses positioned in-betweenthe goggle lens and their face. Such has led to poor vision fromfogging, glare from the interaction of spaced refraction surfaces,shadow images caused by the spaced lenses, and other issues caused bythe interaction between the eyeglass lenses spaced from the goggle lensor lenses.

In prior art a partial solution to the problem has been advanced. Forexample U.S. Pat. No. 8,814,349 (Quintana), while a leap forward, in theconcept of providing a unitary structure of corrective lenses andpanoramic or shielding lens, could use improvement in the taughtconstruction of the unitary structure. Quintana, while teaching thenovel concept of using two projecting portions rising from one side of afirst panoramic lens for formation of ophthalmic lenses, makes noaccommodation for the risk of cracking along the perimeter of theprojecting portions at their intersection with the front panoramic lens.Additionally, refraction of light through the sidewall of the projectingportions and adjacent their intersection with the front panoramic lens,as taught by the Quintana reference, may generate refractive qualitiessuch as colorized light, which has been found to be distracting tousers. Additionally, when employed for goggles which form a sealedcavity in front of the face of the user, the dissimilar thicknesses ofthe panoramic lens or shield areas thereof with projecting portions, canhave thermal issues during formation due to the retention of heat in thethicker areas. Additionally, no prior art teaches a manner in whichsmaller projections on a curved panoramic shield can be ground torequired characteristics to provide vision correction to a wearer.

As such, there exists an unmet need, for a corrective lens formable upona surface of a thinner panoramic lens, where the intersection of theperimeter of the projecting material from which the ophthalmic lens isformed and the planar panoramic front lens is configured to preventcracking and stress fractures over time and temperature differentials.Such a device should provide a form which is employable in single lensesof eyewear as well as in dual lens configurations of protective eyewearshields and sport and protective goggle devices and in shapes whichallow for formation of progressive lenses in both the horizontal andvertical direction. Still further, such a device and method shouldprovide projections on the frontal panoramic lens which are machinableto corrective lenses using conventional lens grinding machinery, inspite of the large and highly curved panoramic lens surrounding theprojecting portions.

The forgoing examples of related art and limitations related therewithare intended to be illustrative and not exclusive, and they do not implyany limitations on the invention described and claimed herein. Variouslimitations of the related prior art will become apparent to thoseskilled in the art upon a reading and understanding of the specificationbelow and the accompanying drawings.

OBJECTS OF THE INVENTION

It is an object of this invention to provide a unitary structure of afirst curved or panoramic lens having one or a plurality of projectingportions formed thereon which may be cut to form ophthalmic lenses.

It is a further object of this invention to provide such a unitarystructure where the first lens on which the projecting portion isformed, surrounds the projecting portion in a thinner cross section ofoptical material which may be fit to frames heretofore precluded forusers with thick lens prescriptions.

It is a further object of this invention to eliminate or at leastminimize the potential for cracking of the thinner front or panoramiclens at the intersection of the perimeter sidewalls of the projectingportions and the panoramic lens they are formed upon.

It is a further object of this invention to provide the projectingportions formed upon a surface of a larger curved lens to be machinableusing conventional lens grinding machinery despite the large and curvedfirst lens portions surrounding them.

It is also an object of this invention to provide the projectingportions formed to unitary structure with the surrounding panoramicfirst lens, in shapes which may be cut to allow for progressive lensesin both the horizontal and vertical directions.

These and other objects, features, and advantages of the present lensinvention and system herein, as well as the advantages thereof overexisting prior art, which will become apparent from the description tofollow, are accomplished by the improvements described in thisspecification and hereinafter described in the following detaileddescription which fully discloses the invention, but should not beconsidered as placing limitations thereon.

SUMMARY OF THE INVENTION

The present invention is a lens formed into a unitary structurefeaturing a first lens portion formed in a generally concave panoramicshape and having a plurality of projecting portions on a rear surface,defined in shape by a perimeter edge, rising from a permanent connectionwith a first surface of the first lens portion. The cross sectionalthickness of the first lens portion, which curves around and surroundsthe projecting portions, is thinner than the cross sectional thicknessof the area within the bounds of the perimeter of the projectingportions, rising from an inner or first side of the first lens portion.

In a preferred mode of the device, the radii of the first lens portionor shield can vary slightly to better accommodate the portion in acentral area of the shield where the projections are located and reducedistortion further. For example, the first lens portion or shield canhave a general radii of a front surface of the shield or first lensportion, which is 75 mm. However, the central area where the projectionsextend can be 65 mm (flatter). This slight flattening of the arc in thecentral portion has been found to increase the range of possiblecorrective prescriptions to be produced. However, the difference inradii would not be noticeable to the naked eye, and the first portion orshield will maintain, in general, its original shape for cosmetics andfitment to conventional frames and goggle housings.

This first lens portion is optically correct across its entire surfacesuch that the thinner surrounding area, on both sides of the centralportion, is optically correct and significantly thinner in cross sectionto allow engagement within an eyeglass frame or goggle but still adaptedfor an engagement to temple portions to form a shield.

In all modes of the device herein, the intersection of the perimeteredge of the sidewall defining the shape of the projecting portionemployed for lens formation, with the first surface for the first lensportion, is preferably neither a perpendicular intersection of twoplanar surfaces nor an intersection of a straight line extending up thesidewall surface of the projecting portion.

In all modes of the device herein, that intersection of the sidewall ofthe perimeter of the projecting portions which defines a shape of theprojecting portions, is preferably formed such that the line running upthe sidewall surface from the intersection with the first surface of thefirst lens portion, is non linear in that a portion of the sidewallchanges direction relative to the rest of the sidewall extending to theedge of the machinable surface of the projecting portion.

In all modes of the device herein, one or, more preferably, a pluralityof such projecting portions, are engaged with the surrounding opticallycorrect panoramic lens in a manner to yield a permanent connectionbetween the two, which forms a unitary structure with minimal, if any,optical distortion therethrough. This connection between the projectingportion or portions is preferably achieved by molded formation of aunitary structure of the projecting portions and the first lens portionor shield defining a panoramic lens.

In forming a unitary structure, the projections and first lens portionor shield can be molding as a single unit, or the projections may beco-molded into the first lens portion. In co-molding, the projectionsare pre-formed and subsequently communicated into the mold for the firstlens portion, wherein a first surface of the projections melts and joinsto the projecting portions to form a unitary structure.

As noted, it is preferable that the intersection of the perimetersidewall of the projections, and the central portion of the first lensportion, is not perpendicular. Thus, in molding or forming the unitarystructure of the first lens portion and projections, this intersectionis preferably formed curved or angled. It is also preferred that a widthof the intersection of the angled or curved surface forming theconnection be small and not rise more than a millimeter above thesurface of the first lens portion, because experimentation has shownthis to minimize any distortion or light refraction issues.

Additionally, if formed of a curved first lens portion or shield with aplurality of projecting portions thereon for engagement to goggles or aneyeglass frame, a polarizing layer may be placed in-between the materialforming the first lens portion and the projecting portion which ismachinable to form the corrective lens. This will provide polarizedlight transmission to the wearer. Such may be accomplished by layeringthe first lens portion.

Still further, the shape of the projecting portion defined by thesidewall intersecting the first surface of the first lens portion can beformed in shapes, as shown herein, or other shapes, which will allow forcutting of progressive lenses therein for the user. For example, onesuch shape, as shown in the figures, has a wider diameter adjacent thetwo ends of the curved first lens portion and narrows and extends towardthe middle.

This preferred shape allows for portions of the projecting portion toextend closer to the bridge of the nose, while concurrently extending tothe temple and well below the nose. This extended rectangular shape witha curve extending from a nose-side to the lower edge allows forformation of progressive lenses which are highly customized to a userwhere the progressive lens can be both horizontal from top to bottom andsideways from nose to temple. Since the surrounding section of the firstlens portion is significantly thinner than the unitary portion of theprojecting portion and first lens portion, the formed lens or shield canbe configured for users.

Additionally shown is a preferred removable tooling engagement memberwhich may be formed as part of the unitary lens. By formation of thistooling engagement member, in a break away or removable engagementextending perpendicular from the axis of the unitary lens and in acentered position, it allows for machining of the raised surfaces of theprojecting portions to form corrective lenses by an engagement of theunitary structure to a lens machining apparatus using the removableprojecting member. As noted, this tooling engagement, and the unitarystructure of the first lens and projecting portion, overcomes theproblems associated with the prior art, where the large curved panoramicfirst lens portion blocks engagement in a conventional fashion to lensgrinding machines. Once the projecting portion surface or surfaces havebeen properly machined to the corrective lens, the projecting member canbe removed by breaking a frangible portion or cutting it from the sideedge.

Finally, the unitary lens herein is especially well adapted to theformation of protective eyewear, as well as for sport goggles and thelike. This is because a plurality of raised portions may be permanentlyengaged and extend from the first surface of the first lens portionsurrounding the raised portions, and the first lens portion is large andpanoramic and has thin edges, the unitary structure provides a gogglewhich is protected from fogging and the like. Further, as noted above, awafer or layer of polarizing film may be positioned between the lenses,or within the pre formed projecting portions which are later co moldedto the first lens portion, thereby providing polarized eyewear to theuser for high glare conditions.

In all modes, both the first lens portion surrounding the engagedprojecting portion, and the projecting portion or portions, may beformed of polycarbonate plastic or other optically suitable polymeric orplastic materials, such as a monomer plastic, or a “High Index” plastic.

With respect to the above description, before explaining at least onepreferred embodiment of the herein disclosed eyewear invention indetail, it is to be understood that the invention is not limited in itsapplication to the details of construction and to the arrangement of thesteps in the following description or illustrated in the drawings. Theunitary lens invention herein described is capable of other embodimentsand of being practiced and carried out in various ways which will becomeobvious to those skilled in the art on reading this disclosure. Also, itis to be understood that the phraseology and terminology employed hereinare for the purpose of description and should not be regarded aslimiting.

As such, those skilled in the art will appreciate that the conceptionupon which this disclosure is based may readily be utilized as a basisfor designing and carrying out the present disclosed system and eyewearapparatus. It is important, therefore, that the claims be regarded asincluding such equivalent construction and methodology insofar as theydo not depart from the spirit and scope of the present invention.

BRIEF DESCRIPTION OF DRAWING FIGURES

FIG. 1 depicts a view of the first surface of a first lens portionhaving a plurality of raised portions with shapes defined by a perimetersidewall, extending away therefrom.

FIG. 2 depicts a view of the opposite side of the first lens portionfrom FIG. 1 showing the second surface and the shadowless appearance ofthe second surface provided by the unitary structure herein.

FIG. 3 depicts a perspective view of the view of FIG. 1 showing twoprojecting portions having a shape defined by a perimeter sidewallextending from the first surface of the first lens portion.

FIG. 4 is a sectional view through FIG. 3 showing the unitary structureformed by the projecting portions and first lens portion and the nonlinear intersection of the sidewall of the projecting portions with thefirst surface of the first lens portion.

FIG. 4a shows a curved intersection between the sidewall defining theshape of the projecting portion and the first surface of the first lensportion.

FIG. 4b shows a reverse curved intersection between the sidewalldefining the shape of the projecting portion and the first surface ofthe first lens portion.

FIG. 4c shows an angled intersection between the sidewall defining theshape of the projecting portion and the first surface of the first lensportion.

FIG. 4d shows a curved radius relief intersection between the sidewalldefining the shape of the projecting portion and the first surface ofthe first lens portion.

FIG. 5 depicts another mode of the unitary lens structure showing acurved panoramic first lens portion and two circular projecting portionsextending from the first surface thereof and showing the centeredpositioning of a tooling engagement member attached thereto, which maybe employed on all versions of the device herein.

FIG. 6 shows a view of the unitary lens structure of FIG. 5 from theopposite side from FIG. 5 showing the second side surface.

FIG. 7 shows a perspective view of a unitary lens structure such as inFIG. 6, showing the tooling engagement member centered between the twoends of the first lens portion and running perpendicular to an axisrunning across the first lens portion.

FIG. 8 depicts a sport goggle mode of the device herein.

FIG. 9 depicts a first lens portion having two projecting portionsthereon and a second lens engaged in a spaced relationship adjacent thesecond surface of the first lens portion as would be engaged in thegoggle of FIG. 8.

FIG. 10 shows the device in a similar fashion to that of FIG. 9,engageable within the goggle frame of FIG. 8, wherein the second lensforming a cavity is positioned adjacent to the raised lens-machinablesurfaces of the projecting portions.

FIG. 11 shows another mode of the device adapted for a goggle tominimize fogging in the same fashion as those of FIGS. 9, 10, and 12,and showing a mating lens having projecting sections adapted to fitadjacent the sidewalls of the formed projecting portions of the firstlens.

FIG. 12 depicts a mode of the device forming a unitary lens structureadapted for engagement in eyeglass frames where the thinner crosssection of the first lens portion surrounds the thicker area where theprojecting portion is engaged.

FIG. 12 depicts a mode of the device forming a unitary lens structurewhich is adapted for engagement in eyeglass frames where the thinnercross section of the first lens portion surrounds the thicker area wherethe projecting portion is engaged.

FIG. 13 is an overhead view of the device as in FIG. 12 showing theintersection surrounding the perimeter sidewall defining the shape ofthe oval projecting portion and the first surface of the first lensportion.

FIG. 14 depicts a sectional view of the device of FIGS. 12 and 13 andshows the preferred non linear intersection of the sidewall defining theprojecting portion, with the first surface of the first lens portion.

FIGS. 15a-15d depict various preferred shapes to the intersection of thesidewall with the first surface of the first lens portion, to eliminatethe linear intersection prone to cracking.

FIG. 16 depicts unitary lenses formed to engage eyeglass frames wherethe thicker projecting portion is surrounded by the thinner first lenssurface to allow engagement to more fashionable eyewear when the usermust have thick lenses for sight correction.

FIG. 17 depicts another mode of the device as in FIG. 16 but withrectangular panoramic first lens portions.

FIG. 18 shows the unitary lens structure herein having a polarizing orother filter engaged between the projecting portion and the first lensportion and which can be included with any form of the unitary lensherein.

FIG. 19 depicts the unitary lens structure where the polarizing or otherfilter layer is positioned across the entire first lens component inbetween the first surface and second surface thereof.

Other aspects of the present invention shall be more readily understoodwhen considered in conjunction with the above noted accompanyingdrawings, and the following detailed description, neither of whichshould be considered limiting.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION

Now referring to drawings of FIGS. 1-19, where similar structures aredescribed with like numerals there is seen in FIG. 1 depicts a view of amode of the device 10 having a unitary structured lens, formed of afirst lens portion 12 having a first surface 14, and having at leastone, or as shown preferably a plurality of projecting or projectingportions 16 extending therefrom. The projecting potions 16 have a shapedefined by a perimeter formed by a sidewall 18 which extends away froman intersection 20 at a first end of the sidewall 18, with the firstsurface 14 of the first lens portion 12. The sidewall 18 of eachprojecting portion 16 extends to a distal end, at an intersection withthe edge of a projecting surface 22 formed within the perimeter definedby the sidewall 18. The projecting surface 22, is adapted for formationof an ophthalmic lens to correct the vision of a user or wearer.

A particularly preferred shape of the projecting portions 16 is shown inFIG. 1. As shown, each of the two projecting portions 16 has arespective wider diameter adjacent the two ends of the curved first lensportion 12, and have narrower diameters at their respective ends,adjacent the middle.

This preferred shape allows for portions of the projecting portions 16to extend closer to the bridge of the nose, while concurrently extendingto the temple and well below the nose. This extended rectangular shape,with a curve extending from a nose-side of the projections 16 to a loweredge adjacent both ends of the first lens portion 12, allows forformation of progressive lenses, using the projecting portions 16, andprescriptive eyewear which are highly customized, as the formedprogressive lens can be both horizontal from top to bottom, and sidewaysfrom nose end to temple end.

FIG. 2 depicts a view of the opposite side or second side surface of thefirst lens portion 12 from that shown in FIG. 1. A novel aspect of thedisclosed device 10 is that the formed unitary structure of ophthalmiclens formed on the projecting portion 16 projecting from the first side14 of the first lens portion 12, when viewed from the second surface 24side, yields a shadowless appearance of the second surface 24 even wherea filter material may be inserted as noted below.

Shown in FIG. 3 is a perspective view of the device 10 shown in FIG. 1.Depicted are a plurality of two projecting portions 16 each having ashape defined by the perimeter of a sidewall 18 extending from anintersection 20 with the first surface 14 of the first lens portion 12.As can be seen the cross sectional thickness of the first lens portion12 surrounds the formed projecting portions 16 and is significantlythinner. As noted, the projecting portions 16 and first lens portion 12are formed in a unitary structure, either by a single mold with theprojections 16 and lens portion 12, or by co molding formed projectingportions 16 into the mold for the first lens portion 12 which melts andforms the projecting portions 16 into the structure of the first lensportion 12.

In the depiction of FIG. 4 is shown a sectional view through the deviceas in FIGS. 1 and 3 showing the unitary structure of the first lensportion 12 and projecting portions 16. The non linear intersection 20 ofthe sidewall 18 forming the perimeter and defining the shape of theprojecting portions 16 with the first surface 14 of the first lensportion 12 is preferred. As noted above, the non linear intersection 20of the sidewall 18 with the first surface 14 is most important. By nonlinear is meant that the line running along the surface of the sidewall18 running between its communication with the raised surface 22 and theintersection 20, does not intersect the line or planar surface of thefirst side of the first lens portion.

Instead, at, or adjacent to, the interaction 20 the surface of thesidewall 18 deviates from a planar or straight surface, with an angledportion or curved portion of the surface communicating between thesidewall 18, and the first surface 14. Currently, the angledintersection of FIG. 4c and the curved intersection is in FIG. 4a areparticularly preferred as a non linear communication of the sidewall 18with the first surface 14, however the other noted intersection shapesof FIGS. 4b-4d are also examples of a non linear communication of thesidewall 18 at or adjacent to the first surface 14.

FIG. 4a shows a curved surface at the intersection 20 between thesidewall 18 defining the shape of the projecting portion 16 and thefirst surface 14 of the first lens portion 12.

FIG. 4b shows a reverse curved shape of the surface of the intersection20 between the sidewall 18 defining the shape of the projecting portion16 and the first surface 14 of the first lens portion 12.

FIG. 4c shows an angled surface of the intersection 20 between thesidewall 18 defining the shape of the projecting portion 16 and thefirst surface 14 of the first lens portion 12.

FIG. 4d shows a curved relief shaped intersection 20 of the perimeteredge of the sidewall 18, running underneath the first end of thesidewall, 18 and depending into the first surface 14, and running forthe perimeter of the projecting portion 1.

Thus, the non linear intersection as defined herein, can be any of agroup of non linear intersections, including an intersection formed by acurved surface extending between said first end of said sidewall andsaid first surface of said first lens portion as in FIGS. 4a and 4b , anintersection formed by an angled surface extending between said firstend of said sidewall and said first surface of said first lens portionas in FIG. 4c , and an intersection formed by a recess extendingunderneath said first end of said first sidewall 18 and depending intothe first surface 14 of said first lens portion 12. This formation of anon linear intersection as noted, prevents cracks.

As shown in FIG. 5 is depicted another mode of the unitary lensstructure device 10 herein. Shown is a curved panoramic first lensportion 12 and two circular projecting portions 16 extending from thefirst surface 14 of the curved first portion 12 of the formed lens. Theperimeter intersection 20 of both sidewalls 18 is shown also and wouldpreferably non linear as noted above. Additionally depicted is acentered tooling engagement member 28 in operative engagement to thefirst lens portion 12 along a side edge. This tool engagement member maybe employed in all modes of the device herein.

In FIG. 6 is shown an opposite side view of the unitary lens structureof FIG. 5 showing the second side surface 24 and showing the toolingengagement member 28 centered between the two side edges 13 of the firstlens portion 12 and extending perpendicular to a horizontal axis runningbetween the two side edges 13.

A perspective view of this configuration is shown in FIG. 7. As can beeseen, the tooling engagement member 28 is centered between the two ends13 of the first lens portion 12 and runs substantially perpendicular toan axis 17 running across the first lens portion 12 between both ends orthe temple ends, thereof. As noted this tooling engagement member 28 isadapted for engagement with conventional eyeglass grinding machines,where a goggle lense will not fit or be engageable to form the lenses.

FIG. 8 depicts a sport or protective goggle mode 33 of the device 10herein. The configurations shown in FIGS. 9-12 can be engaged with agoggle frame such as in FIG. 8.

In FIG. 9 is shown first lens portion 12 having two projecting portions16 thereon and having a second lens 31 engaged in a spaced relationshipadjacent the second surface 24 of the first lens portion 12 as would beengaged in the goggle of FIG. 8.

Shown in FIG. 10 is a mode of the device 10 similar in fashion to thatof FIG. 9 and engageable within the goggle frame 33 such as that of FIG.8. In this figure, the second lens 31 forming a cavity is positionedadjacent to the lens-machinable raised surfaces 22 of the projectingportions 16.

Another goggle or protective eyewear mode is shown in FIG. 11 andadapted to minimize fogging in the same fashion as those of FIGS. 9, 10,and 12. As depicted, a mating second lens 31 having projecting sections35 is engageable where the projecting sections 35 are configured to fitadjacent the sidewalls 18 of the formed projecting portions 16 of thefirst lens 12 and fill the gaps.

FIG. 11 shows another mode of the device adapted for a goggle tominimize fogging in the same fashion as those of FIGS. 9, 10, and 12,and showing a mating lens having projecting sections adapted to fitadjacent the sidewalls of the formed projecting portions of the firstlens.

FIG. 12 depicts a mode of the device forming a unitary lens structureformed with a first lens portion 12 and projecting portion 16 as withthe other modes herein. This mode of the device is well adapted forengagement in eyeglass frames where the thinner cross section of thefirst lens portion 12 which surrounds the thicker area where theprojecting portion 16 rises will better fit frames.

FIG. 13 is an overhead view of the device as in FIG. 12 showing theperimeter intersection 20 of the sidewall 18 with the first surface 14of the first lens portion 12. As depicted the sidewall 18 defines anoval projecting portion 16 extending from the first surface 14 of thefirst lens portion 12.

FIG. 14 depicts a sectional view of the device of FIGS. 12 and 13 andshows the preferred non linear intersection 20 between the sidewall 18and the first surface 14 of first lens portion 12 as is preferable inall modes of the device herein.

FIGS. 15a-15d depict various non linear shapes to the intersection 20 ofthe sidewall 18 with the first surface 14 of the first lens portion 12.Such as noted are highly preferred to eliminate a linear intersectionprone to cracking.

FIG. 16 depicts unitary lense devices 10 formed to engage eyeglassframes where the thicker projecting portion 16 is surrounded by thethinner first lens portion 12 to allow for optical prescriptionsrequiring thick lenses, but also allow engagement of the formed lensdevices 10 to more fashionable eyewear when the user must have suchthick lenses for sight correction. In FIG. 17 is shown a similar mode ofthe device 10 as in FIG. 16, but with rectangular panoramic first lensportions 12.

Where filtered optics are desired or required in the device 10 herein inany mode, such is depicted in FIG. 18 and FIG. 19. In FIG. 18 is shownthe unitary lens device 10 which has a polarizing or other filter layer36 engaged between the projecting portion 16 and the second side 24 ofthe first lens portion 12. Shown in FIG. 19 the polarizing or otherfilter layer 36 is positioned across the entire first lens portion 12 inbetween the first surface 14 and second surface 24 thereof.

While all of the fundamental characteristics and features of thesoftware enabled employee management and matching system herein havebeen shown and described herein, with reference to particularembodiments thereof, a latitude of modification, various changes andsubstitutions are intended in the foregoing disclosure and it will beapparent that in some instances, some features or steps in the inventionmay be employed without a corresponding use of other features or stepswithout departing from the scope of the invention as set forth. Itshould also be understood that various substitutions, modifications, andvariations may be made by those skilled in the art without departingfrom the spirit or scope of the invention. Consequently, all suchmodifications and variations and substitutions are included within thescope of the invention as defined by the following claims.

What is claimed is:
 1. A unitary lens structure, comprising: a firstlens portion having a perimeter edge and having a first surface oppositea second surface; said first lens portion having a first end opposite asecond; at least one projecting portion, said projecting portion havinga sidewall defining a perimeter edge of said projecting portion, saidperimeter edge defining a shape of said projecting portion; saidprojecting portion and said first lens portion forming a unitarystructure, with said projecting portion extending from an intersectionof a first end of said sidewall with said first side of said first lensportion, to a raised surface having a shape defined by a second end ofsaid sidewall; and each said raised surface adapted for formation of anophthalmic lens to correct the vision of a wearer of said unitary lensstructure.
 2. The unitary lens structure of claim 1, wherein saidintersection of said first end of said sidewall with said first surfaceof said first lens portion, is a non-linear intersection of said firstend of said sidewall with said first surface of said first lens portion.3. The unitary lens structure of claim 2, wherein said non linearintersection is any of a group of non linear intersections, includingsaid intersection formed by a curved surface extending between saidfirst end of said sidewall and said first surface of said first lensportion, said intersection formed by an angled surface extending betweensaid first end of said sidewall and said first surface of said firstlens portion, and said intersection formed by a recess extendingunderneath said first end of said sidewall and depending into said firstsurface of said first lens portion.
 4. The unitary lens structure ofclaim 1 wherein said perimeter edge of said first lens portion is largethan said perimeter edge of said projecting portion; and said perimeteredge of said first lens portion configured for engagement with one lensholder of an eyeglass frame, and whereby said raised surface may beformed to an ophthalmic lens to correct the vision of a nearsightedwearer, and said perimeter edge of said first lens portion is engageablewith a said eyeglass frame.
 5. The unitary lens structure of claim 2wherein said perimeter edge of said first lens portion is large thansaid perimeter edge of said projecting portion; and said perimeter edgeof said first lens portion configured for engagement with one lensholder of an eyeglass frame, and whereby said raised surface may beformed to an ophthalmic lens to correct the vision of a nearsightedwearer, and said perimeter edge of said first lens portion is engageablewith a said eyeglass frame.
 6. The unitary lens structure of claim 3wherein said perimeter edge of said first lens portion is large thansaid perimeter edge of said projecting portion; and said perimeter edgeof said first lens portion configured for engagement with one lensholder of an eyeglass frame, and whereby said raised surface may beformed to an ophthalmic lens to correct the vision of a nearsightedwearer, and said perimeter edge of said first lens portion is engageablewith a said eyeglass frame.
 7. The unitary lens structure of claim 1additionally comprising: said first lens portion having a perimeter edgesized for engagement with a goggle frame; two projecting portions,extending from a said intersection of a respective first end of arespective said sidewall with said first side of said first lensportion; said two projecting portions and said first lens portion formedas a unitary structure; and each of said two projecting portions havinga said raised surface adapted for formation of a said ophthalmic lens tocorrect the vision of a said wearer of said unitary lens structure. 8.The unitary lens structure of claim 2 additionally comprising: saidfirst lens portion having a perimeter edge sized for engagement with agoggle frame; two projecting portions, extending from a saidintersection of a respective first end of a respective said sidewallwith said first side of said first lens portion; said two projectingportions and said first lens portion formed as a unitary structure; andeach of said two projecting portions having a said raised surfaceadapted for formation of a said ophthalmic lens to correct the vision ofa said wearer of said unitary lens structure.
 9. The unitary lensstructure of claim 3 additionally comprising: said first lens portionhaving a perimeter edge sized for engagement with a goggle frame; twoprojecting portions, extending from a said intersection of a respectivefirst end of a respective said sidewall with said first side of saidfirst lens portion; said two projecting portions and said first lensportion formed as a unitary structure; and each of said two projectingportions having a said raised surface adapted for formation of a saidophthalmic lens to correct the vision of a said wearer of said unitarylens structure.
 10. The unitary lens structure of claim 7 additionallycomprising: a tooling engagement member extending from a first endengaged with said first lens portion, to a distal end; said toolingengagement member adapted to engage a lens machining device; saidtooling engagement member positioned upon said first lens portion andengaged with said lens machining device, operatively positioning saidraised surfaces for ophthalmic lens formation using said lens machiningdevice.
 11. The unitary lens structure of claim 9 additionallycomprising: a tooling engagement member extending from a first endengaged with said first lens portion, to a distal end; said toolingengagement member adapted to engage a lens machining device; saidtooling engagement member positioned upon said first lens portion andengaged with said lens machining device, operatively positioning saidraised surfaces for ophthalmic lens formation using said lens machiningdevice.
 12. The unitary lens structure of claim 10 additionallycomprising: a tooling engagement member extending from a first endengaged with said first lens portion, to a distal end; said toolingengagement member adapted to engage a lens machining device; saidtooling engagement member positioned upon said first lens portion andengaged with said lens machining device, operatively positioning saidraised surfaces for ophthalmic lens formation using said lens machiningdevice.
 13. unitary lens structure of claim 7 additionally comprising:both of said two projecting portions, having a said shape which is widerat first end of said projecting portions adjacent ends of said firstlens portion, and narrower at second ends centrally located on saidfirst lens portions; said first side of each of said projecting portionsextending in a line between a first corner of said first side and firstcorner of a second side; and a second side of each of said projectingportions extending in a curve from a second corner of said first side toa second corner of said second side.
 14. The unitary lens structure ofclaim 8 additionally comprising: both of said two projecting portions,having a said shape which is wider at first end of said projectingportions adjacent ends of said first lens portion, and narrower atsecond ends centrally located on said first lens portions; said firstside of each of said projecting portions extending in a line between afirst corner of said first side and first corner of a second side; and asecond side of each of said projecting portions extending in a curvefrom a second corner of said first side to a second corner of saidsecond side.
 15. The unitary lens structure of claim 9 additionallycomprising: both of said two projecting portions, having a said shapewhich is wider at first end of said projecting portions adjacent ends ofsaid first lens portion, and narrower at second ends centrally locatedon said first lens portions; said first side of each of said projectingportions extending in a line between a first corner of said first sideand first corner of a second side; and a second side of each of saidprojecting portions extending in a curve from a second corner of saidfirst side to a second corner of said second side.
 16. The unitary lensstructure of claim 3 additionally comprising: wherein both said curvedsurface extending between said first end of said sidewall and said firstsurface of said first lens portion, and said angled surface extendingbetween said first end of said sidewall and said first surface of saidfirst lens portion, extend to a point on said sidewall which is 1 mm orless, above said first surface of said lens portion.
 17. The unitarylens structure of claim 6 additionally comprising: wherein both saidcurved surface extending between said first end of said sidewall andsaid first surface of said first lens portion, and said angled surfaceextending between said first end of said sidewall and said first surfaceof said first lens portion, extend to a point on said sidewall which is1 mm or less, above said first surface of said lens portion.
 18. Theunitary lens structure of claim 9 additionally comprising: wherein bothsaid curved surface extending between said first end of said sidewalland said first surface of said first lens portion, and said angledsurface extending between said first end of said sidewall and said firstsurface of said first lens portion, extend to a point on said sidewallwhich is 1 mm or less, above said first surface of said lens portion.